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Posted to solr-user@lucene.apache.org by Srinivasa7 <sr...@googlemail.com> on 2014/02/06 15:30:19 UTC

Performance impact using edismax over dismax

Hi All,

I have a requirement to search a query for entire string in the query
parameter, so I have shifted my query processor to edismax, and sending the
query as  'actual query string'+OR+actual+query+string.


It it returning desired results how ever I am wondering whether there is a
performance impact.

Any thoughts?

Using solr 3.6.2


Thanks 
Srinivasa



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Re: Performance impact using edismax over dismax

Posted by Jack Krupansky <ja...@basetechnology.com>.
Use the pf parameter and then you won't have to modify the original query at 
all! And you can add a boost for the phrase, which is a common practice.

pf=search-field^10.0

-- Jack Krupansky

-----Original Message----- 
From: Srinivasa7
Sent: Thursday, February 6, 2014 11:21 AM
To: solr-user@lucene.apache.org
Subject: Re: Performance impact using edismax over dismax

HI Jack,

I am not using pf parameter rather I am sending query in Quotes.

So sample query string for  'east ende rs'

I am querying "east ende rs"+OR+east+ende+rs with defType is solrconfig set
to edismax.

Other than that I am not using any parameters (pf, pf2, pf3)


Thanks
Srinivasa





--
View this message in context: 
http://lucene.472066.n3.nabble.com/Performance-impact-using-edismax-over-dismax-tp4115821p4115841.html
Sent from the Solr - User mailing list archive at Nabble.com.

Re: Performance impact using edismax over dismax

Posted by Srinivasa7 <sr...@googlemail.com>.
HI Jack,

I am not using pf parameter rather I am sending query in Quotes. 

So sample query string for  'east ende rs'

I am querying "east ende rs"+OR+east+ende+rs with defType is solrconfig set
to edismax.

Other than that I am not using any parameters (pf, pf2, pf3)


Thanks 
Srinivasa





--
View this message in context: http://lucene.472066.n3.nabble.com/Performance-impact-using-edismax-over-dismax-tp4115821p4115841.html
Sent from the Solr - User mailing list archive at Nabble.com.

Re: Performance impact using edismax over dismax

Posted by Jack Krupansky <ja...@basetechnology.com>.
Are you using the "pf" parameter to automatically add the quoted phrase? You 
can include a boost in pf so that documents with the full phrase rank 
higher.

Generally, dismax and edismax should give comparable performance, but some 
parameter settings (e.g., pf, pf2, pf3) do add somewhat to query complexity, 
albeit in the name of better relevancy.

-- Jack Krupansky

-----Original Message----- 
From: Srinivasa7
Sent: Thursday, February 6, 2014 9:30 AM
To: solr-user@lucene.apache.org
Subject: Performance impact using edismax over dismax

Hi All,

I have a requirement to search a query for entire string in the query
parameter, so I have shifted my query processor to edismax, and sending the
query as  'actual query string'+OR+actual+query+string.


It it returning desired results how ever I am wondering whether there is a
performance impact.

Any thoughts?

Using solr 3.6.2


Thanks
Srinivasa



--
View this message in context: 
http://lucene.472066.n3.nabble.com/Performance-impact-using-edismax-over-dismax-tp4115821.html
Sent from the Solr - User mailing list archive at Nabble.com.